| Calheta to Nottingham | 1,607.79 mi (2,587.48 km) |
| Calheta to Nuneaton | 1,575.91 mi (2,536.19 km) |
| Calheta to Oadby | 1,589.86 mi (2,558.64 km) |
| Calheta to Oakengates | 1,562.09 mi (2,513.93 km) |
| Calheta to Oakham | 1,602.47 mi (2,578.92 km) |
| Calheta to Oldbury | 1,561.54 mi (2,513.06 km) |
| Calheta to Oldham | 1,618.66 mi (2,604.97 km) |
| Calheta to Ollerton | 1,624.76 mi (2,614.79 km) |
| Calheta to Olton | 1,562.83 mi (2,515.14 km) |
| Calheta to Omagh | 1,585.69 mi (2,551.91 km) |
| Calheta to Ormesby | 1,697.47 mi (2,731.82 km) |
| Calheta to Ormskirk | 1,602.94 mi (2,579.68 km) |
| Calheta to Orpington | 1,555.02 mi (2,502.56 km) |
| Calheta to Ossett | 1,638.67 mi (2,637.19 km) |
| Calheta to Oswaldtwistle | 1,624.02 mi (2,613.61 km) |
